255/70R21Tires
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What Does 255/70R21 Mean?
A 255mm wide tire with a sidewall height equal to 70% of the width (178.5mm), fitting a 21-inch rim — a common passenger tire size in the US market.
FAQ — 255/70R21 Tires
Where can I buy 255/70R21 tires online in the USA?+
Major US online retailers stock 255/70R21 with ship-to-installer options. Compare live prices on this page once our database is populated for your size.
How much does a 255/70R21 tire cost in the USA?+
Passenger 255/70R21 tires commonly run $80–$200 each before installation, depending on brand and season rating.
Is 255/70R21 the right tire for my car?+
Check your door-jamb sticker or owner's manual. Many vehicles that use 255/70R21 also have approved alternative sizes — see our vehicle fitment pages for common models.
How much does tire installation cost for 255/70R21?+
Most US tire shops charge $15–$25 per tire for mount and balance. Wheel alignment is often $75–$150 extra. Retailers like Tire Rack let you ship to a local installer at checkout.
Is 255/70R21 the same as 255/70R21?+
Yes — same size. Both describe a 255mm wide tire with a 70% sidewall on a 21-inch rim.